Dome lamp



F. L. LARAVA DOME LAMP Filed June 4, 1926 -Z t ymz' '271%' f7-*w24 Z.Lann/62 3y wf-Wy? Y `'Patenftel Dc. 21,1925@ Y roem; I). partei/'Ahrmeeneem. MASSACHUSETTS.'Assist@ T0. GJLVB STABiNS runngnrnorunrneooivinaiiY-- on 'wenn risrnjraI in njsseorrnsnrrs, A Conroe-errori fApplication'edgiiiie 4,/

- .This invention; relaties to an electric lamp f lamp in which the'Casing forthe Vassociated parts constituteyall e cprinjgs Suppbillb-WlliLGll is; capable of i general :use.bu t particularly yadapted t o rthe deine lamp. ot' anantjomobile- 'f' `1 Y Y Thiprincipali objects Otthe melltimare Vt provide mounting forthe incandescent lampandneess'erysothatiba-ordinary Springs e111- ingjdrawings7 in .whichsheetmetal, as for example, tin', and it has mounted below it Y in thedirection l'of the arrow 3 in'. Fig. 2;

of the Ysupport for the lamp and electrical ployed are eliminated; andto provide a construction in 'which the -parts can be mounted withouttheuse of Soldering ory welding, and thusdecrease the cost inV two ways.

Other objects and advantages of the in"-l vention will `appearhereinafter.

Reference'is to be had totheraccoinpa-ny- Fig. 1 lisa bottoni plan'viewof the lamp with the glassunderneath'removed; l

" 2l'is a sectionalview ontheline 2+2 oirlitfgg.r 1, showing thefglassand its supportingparts in'vdottedlines; l' Fig. 3 isa view looking atthe lamp socket and l Eig; 4; is -a sectional v'view on enlarged scaleconnection's'l therefor.- I

Although capable of other uses, I will describe thisinventionras appliedto a donne Ylamp for an automobilep In `this .case the dome properV or.reflectorV is formed ot two insulating washers V13 and 14. Theelecftrical connectionis made to a metallic ineinber 15 which passesthroughthe opening in- I the wall '12 andl the washers between thellange and the body 170flthis member.v

Ther-e is a- Vconical openingV 1 8 extending' VVthrough this member'15,;,Th-e 'wirefconduci' `tor issecured in position 'by al screw 1j9with A a. head covering theV` entire base of the member 15. e

y For holding lthe I provide la LAMP.'

192e.y semina 113,801., i

,fseee-flinit, it is force'd outto the Vdottedl line posi- 65y tion bythe pressuret. 'of the metallic' lamp base against theinterior of theconical open- 'fingjlti to vrn'ake a good contact at this point. V Inthlsivay byutili'zing the resiliency lof the socket piecefQlQand,opposing it byy the r'e- 7 0 siliency of thedome 10 atfthe rear, thelamp isi-heldyieldinglyin position, and no ot-h-er springs arerequired.V The lampbase 25 is, lof course, .provided with Vthe usual pin2G for v entering a notch 27 in the edge ofthe l75 socket piecef21which'allows t-he lamp to be 'pushed` in `andr turned slightly as usual.

Then it will be held in positionresiliently y 1 but securely.v Currentis conducted 'to' and from the-lamp by, the electric Wire 29 held' 80inposition by the head ofthe scr-ew v19 and by a wireBOfconnected; withthe donne 10 by a screw 31. The domey is oonnectedwiththe lamp bythefpin'26;

i .It will `beseen fromV theV description that the expense of the deviceis Vreduced by. uti- 'lizing theresiliency of the dome andhase to taket-heplaoe otsprings and that'thei'ex- Vpenseof solderiug,weldin'g,etc.,is entirely' eliminatedfIn thisfwaythe -larnp is made 90 muchless-expensively than has been the casc-l heretofore :withoutVirnpairing its' efficiency. Althoughl vhave illustrated and describedonly a1 simple iormV of. the invention and am, aware of vthe tactthatinodilications can be Inadethereingby any person' skill-ed in the v art,and that the same principle can be applied toV other-forms of lamps;without d.-

pa-rting from the scope ot the invention as Y expressed in thelc'laims.Therefore, -I do not 1 wish tobeliniited vin thisrespect,l butwhatIdoclaim is: -`.A l 'l f As an article of manufacture, a lampV comprisinga reflector constituting acasingV 10o l for thelampand'having secured tothe wall i thereof Y a memher for conducting'` the yelec- .tricity' tothe lamp, and. socket `piece 'for Y the lamp?formedof sheet,inmaterialand se-v cured'tothe casingjandsetso'that whenthe 11e@ i l; lpimiento`rat canale o o" terial, and yhaving a perforation for receiv-Vv lamp isintroduced through itA into Contact With said conducting member it`will, by its own resiliency andv thratcofA the casing, hold the lamp inposition.

V9.,In an electriclarnp, the combination Vwith a thin metal casinghaving a perforatedk gat Wall, of electric conducting means seured tothe casing through saidvperfor'ation and insulated therefrom, and asocket piece secured to the casing, formed of resilient maing the baseof a lamp,v said sock-et'piecebeing normally located' in a `position topress Vthe lampbase against the electric conducting means withyieldingrpressure'. n

8. In anvelectric lamp, the combination Ywith a concave sheet metalcasing, the inside surface `of which constitutes a reflector, saidlcasing having an electric terminal thereon for an electric lamp, of'asheet metal socket pieceV for Vtheflamp having a perforation.`

tened spot, a conducting member extendingv through said perforation andWashers and fix-ed thereto and having a conical opening,

a bracket on thereflector having a socket piece/for a lamp socket forpressing the lamp socket against the inner surface of the conicalopening to make a Contact,V and af conductor fastened to the reflector.'v hereunto af In testimony whereof VI have fixed my signature. K

- n FRANK LLABAVA. Y

